Function Wireless transmission of outdoor temperature and humidity via up to 3 transmitters Indoor temperature and humidity with comfort level Max.-min.-function Weather forecast Atmospheric pressure trend, relative atmospheric pressure, history for the past 24 hours Radio-controlled clock with alarm and snooze function, date, moon phase Backlight Time zone ±12 hrs Fine aluminium facing TFA Quality mark: Swiss Precision SensorIT Instant Transmission Product information for download: Technical data Delivery contents Base station, thermo-hygro transmitter, batteries, instruction manual Measuring range temperature outdoor -40...+60°C (-40...+140°F) Measuring range humidity outdoor 1...99% Radio-controlled clock defeatable Yes Maximum range 100 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3144.IT Colour silver Measuring range temperature indoor -10...+60°C (+14...+140°F) Measuring range humidity indoor 20...95% Clock Radio-controlled clock Material Plastic, aluminium Assembling Wall mounting or free-standing Power consumption Batteries Batteries 3 x AA 1.5 V (base station), 2 x AA 1.5 V (transmitter) Batteries included Yes Dimensions (L) 118 x (B) 34 (85) x (H) 228 mm Weight 315 g